Warming threatens double-trouble in Peru

Andean farmers walk as the Pastoruri glacier is seen in the background in Huaraz, Peru, Nov. 4, 2006. Peru's Andes mountains have lost at least 22 percent of their glacier area since 1970 and the meltdown is speeding up, according to Peru's National Resources Institute and scientists.(AP Photo/Karel Navarro)

Peru's "White Mountain Range" may soon have to change its name.

The ice atop Cordillera Blanca, the largest glacier chain in the tropics, is melting fast because of rising temperatures, and peaks are turning brown. The trend is highlighting fears of global warming and, scientists say, is endangering future water supplies to the arid coast where most Peruvians live.